The answer depends on whether the disposal profit is taxable.
**P&L — where to enter it:**
Use the Interest income field (Box 170) in the Profit & Loss section. Despite the label, this is the standard field for all non-trading income in a CT600, including a profit on sale of business assets.
**Tax computation — excluding it from tax:**
If the profit is not taxable (e.g. it falls within a recognised exemption), you strip it back out in the Tax computation section:
1. Scroll down to Tax computation
2. Click Show ▾ next to Specialist adjustments (or Show all at the top)
3. Enter the non-taxable amount as a negative in Other adjustments (e.g. −50,000 if the non-taxable profit is £50,000)
The two entries — income in Box 170 and the negative Other adjustment — should be equal and opposite, so your taxable profit reflects the correct position.
**If this was a share disposal covered by Substantial Shareholdings Exemption:**
Do not enter anything in the P&L or tax computation at all — SSE disposals are simply omitted from the CT600 return.
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**P&L — where to enter it:**
Use the Interest income field (Box 170) in the Profit & Loss section. Despite the label, this is the standard field for all non-trading income in a CT600, including a profit on sale of business assets.
**Tax computation — excluding it from tax:**
If the profit is not taxable (e.g. it falls within a recognised exemption), you strip it back out in the Tax computation section:
1. Scroll down to Tax computation
2. Click Show ▾ next to Specialist adjustments (or Show all at the top)
3. Enter the non-taxable amount as a negative in Other adjustments (e.g. −50,000 if the non-taxable profit is £50,000)
The two entries — income in Box 170 and the negative Other adjustment — should be equal and opposite, so your taxable profit reflects the correct position.
**If this was a share disposal covered by Substantial Shareholdings Exemption:**
Do not enter anything in the P&L or tax computation at all — SSE disposals are simply omitted from the CT600 return.